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Crank - Crank Arm Loose (C1+, C2, C3)

How to solve the issue: Crank - Crank Arm Loose (C1+, C2, C3)

Laura from Cowboy avatar
Written by Laura from Cowboy
Updated over 8 months ago

How do i know i have this issue?

Your crank arm will be coming loose, typically on the non-drive side. It will typically get wobbly, then it can also fall off in extreme cases.

What causes this issue?

Over time, the crank arm may come loose. In some cases, this can also be caused by incorrect assembly.

Is this issue covered by warranty?

Where to fix your bike

Once you have confirmed your issue with us via your Cowboy app, we will ship you the parts. Once you have received them, you can stop by your local bike shop who will be able to do this for you easily.

  • Local Bike shop: We recommend visiting your local favourite bike shop to easily and quickly fix this issue.

  • Self repair: If you are handy, you can check the videos below and try it out yourself.

Spare Parts Required

Once you have confirmed this as your issue, we will send you an email to confirm the shipment of the following parts;

  • Crank arms

  • Spindle bolt

Tools Required

Repair Instructions

(You can share these instructions with your local bike shop)

  • Step 1: If it's the first time, tighten the crank arm to 45Nm.

  • Step 2: Replace the crank using this tutorial

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